Is SOUTH WILMINGTON required to publish a Consumer Confidence Report?

Yes. SOUTH WILMINGTON is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is SOUTH WILMINGTON’s next Consumer Confidence Report due?

SOUTH WILMINGTON’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

SOUTH WILMINGTON, IL · Grundy County

SOUTH WILMINGTON Water System

Consumer Confidence Report status

SOUTH WILMINGTON must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show 2 items for SOUTH WILMINGTON that are open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Illinois’s official records. Always confirm current status with Illinois before making decisions based on this information.

System facts

System ID (PWSID): IL0630650
System type: Community Water System
Population served: 700
Service connections: 340
Ownership: local government
Water source: groundwater (wells)

SOUTH WILMINGTON is one of 773 community water systems in Illinois in the 501 to 3,300 people size category, serving 700 people from groundwater.

As of August 1, 2026, its federal record holds 25 entries between 1977 and 2026, of which 2 remain open; none are health-based.

Of the 25, 9 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Radionuclides and Revised Rad Rule, the Public Notice Rule and Revised PN Rule, and the Lead and Copper Rule.

Violation history

Public Notification Violation for NPDWR Violation
—
Public Notice
January 14, 2026
Unaddressed
Notification, Known or Potential LSL
—
LEAD AND COPPER RULE REVISIONS
July 2, 2025
Unaddressed
Monitoring, Regular
—
Combined Uranium
October 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
July 1, 2024 – September 30, 2024
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
April 1, 2022 – June 30, 2022
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
January 1, 2020 – March 31, 2020
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
April 1, 2019 – June 30, 2019
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
January 1, 2016 – December 31, 2016
Resolved
Monitoring and Reporting (DBP)
—
TTHM
September 1, 2015 – August 31, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2004 – June 30, 2004
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
January 9, 2004 – January 15, 2004
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2004 – March 31, 2004
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2003 – December 31, 2003
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2003 – September 30, 2003
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2003 – June 30, 2003
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2003 – March 31, 2003
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2002 – December 31, 2002
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
January 1, 2002 – September 30, 2002
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
June 1, 2001 – June 30, 2001
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2000 – September 30, 2002
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
December 8, 1997 – December 7, 2001
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
November 1, 1996 – September 30, 2000
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 1996 – September 30, 2000
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 22, 1992 – October 21, 1996
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
June 30, 1977 – June 29, 1981
Archived

Unaddressed no corrective action on record yetResolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
January 14, 2026	Public Notification Violation for NPDWR Violation	Public Notice	—	Unaddressed
July 2, 2025	Notification, Known or Potential LSL	LEAD AND COPPER RULE REVISIONS	—	Unaddressed
October 1, 2024 – December 31, 2024	Monitoring, Regular	Combined Uranium	—	Resolved
July 1, 2024 – September 30, 2024	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
April 1, 2022 – June 30, 2022	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
January 1, 2020 – March 31, 2020	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
April 1, 2019 – June 30, 2019	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
January 1, 2016 – December 31, 2016	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
September 1, 2015 – August 31, 2016	Monitoring and Reporting (DBP)	TTHM	—	Resolved
April 1, 2004 – June 30, 2004	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 9, 2004 – January 15, 2004	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
January 1, 2004 – March 31, 2004	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 2003 – December 31, 2003	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 1, 2003 – September 30, 2003	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
April 1, 2003 – June 30, 2003	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 1, 2003 – March 31, 2003	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 2002 – December 31, 2002	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 1, 2002 – September 30, 2002	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
June 1, 2001 – June 30, 2001	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
October 1, 2000 – September 30, 2002	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
December 8, 1997 – December 7, 2001	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
November 1, 1996 – September 30, 2000	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 1996 – September 30, 2000	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 22, 1992 – October 21, 1996	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
June 30, 1977 – June 29, 1981	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived

Unaddressed no corrective action on record yetResolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

February 13, 2026State Violation/Reminder Notice1 linked violation
January 27, 2026State Public Notification requested1 linked violation
January 27, 2026State Violation/Reminder Notice1 linked violation
July 29, 2025State Public Notification requested1 linked violation
July 29, 2025State Violation/Reminder Notice1 linked violation
July 3, 2025State Violation/Reminder Notice1 linked violation
July 3, 2025State Public Notification requested1 linked violation
June 2, 2025State Public Notification received1 linked violation
June 2, 2025State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
June 2, 2025State Public Notification received1 linked violation
April 10, 2025State Compliance achieved1 linked violation
April 10, 2025State Compliance achieved1 linked violation
January 13, 2025State Public Notification requested1 linked violation
January 13, 2025State Violation/Reminder Notice1 linked violation
January 9, 2025State Compliance achieved1 linked violation
October 11, 2024State Violation/Reminder Notice1 linked violation
October 11, 2024State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
October 11, 2024State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
October 11, 2024State Public Notification requested1 linked violation
October 11, 2024State Violation/Reminder Notice1 linked violation
October 11, 2024State Public Notification requested1 linked violation
June 26, 2023State Public Notification received1 linked violation
December 15, 2022State Compliance achieved1 linked violation
October 24, 2022State Compliance achieved1 linked violation
October 18, 2022State Public Notification requested1 linked violation
October 18, 2022State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
October 18, 2022State Violation/Reminder Notice1 linked violation
October 18, 2022State Violation/Reminder Notice1 linked violation
August 4, 2022State Compliance achievedgeneral compliance action — not tied to a specific violation on record
July 29, 2022State Compliance achieved2 linked violations
July 13, 2022State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
July 13, 2022State Violation/Reminder Notice1 linked violation
July 13, 2022State Violation/Reminder Notice1 linked violation
June 30, 2021State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
March 22, 2021State Compliance achievedgeneral compliance action — not tied to a specific violation on record
January 14, 2021State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 14, 2021State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
April 23, 2020State Compliance achieved1 linked violation
April 17, 2020State Violation/Reminder Notice1 linked violation
July 17, 2019State Compliance achieved1 linked violation
July 12, 2019State Violation/Reminder Notice1 linked violation
September 7, 2017State Compliance achieved2 linked violations
June 22, 2017State Public Notification received2 linked violations
February 2, 2017State Compliance achieved1 linked violation
January 12, 2017State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 12, 2017State Violation/Reminder Notice1 linked violation
October 17, 2016State Public Notification requested2 linked violations
October 17, 2016State Violation/Reminder Notice2 linked violations
June 23, 2015State Compliance achieved1 linked violation
September 24, 2014State Violation/Reminder Notice1 linked violation
May 30, 2013State Public Notification received1 linked violation
May 21, 2013State Compliance achieved1 linked violation
May 17, 2013State Violation/Reminder Notice1 linked violation
May 17, 2013State Public Notification requested1 linked violation
April 13, 2005State Public Notification received1 linked violation
March 4, 2005State Violation/Reminder Notice1 linked violation
March 4, 2005State Public Notification requested1 linked violation
February 7, 2005State Public Notification received1 linked violation
January 11, 2005State Compliance achieved14 linked violations
January 7, 2005State Violation/Reminder Notice1 linked violation
January 7, 2005State Public Notification requested1 linked violation
November 29, 2004State Public Notification received1 linked violation
October 19, 2004State Violation/Reminder Notice1 linked violation
October 19, 2004State Public Notification requested1 linked violation
October 8, 2004State Compliance achieved2 linked violations
September 27, 2004State Public Notification received1 linked violation
August 21, 2004State Public Notification received1 linked violation
July 10, 2004State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
July 10, 2004State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
July 10, 2004State Public Notification requested1 linked violation
July 10, 2004State Violation/Reminder Notice1 linked violation
April 10, 2004State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
April 10, 2004State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
April 10, 2004State Public Notification requested1 linked violation
April 10, 2004State Violation/Reminder Notice1 linked violation
March 19, 2004State Bilateral Compliance Agreement signed16 linked violations
March 18, 2004State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
March 18, 2004State Public Notification received1 linked violation
March 17, 2004State Violation/Reminder Notice1 linked violation
January 26, 2004State Formal Notice of Violation issued16 linked violations
January 20, 2004State Public Notification received1 linked violation
January 20, 2004State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
January 15, 2004State Compliance achieved1 linked violation
January 10, 2004State Violation/Reminder Notice1 linked violation
January 10, 2004State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 10, 2004State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
January 10, 2004State Public Notification requested1 linked violation
September 19, 2003State Public Notification received1 linked violation
September 19, 2003State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
July 10, 2003State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
July 10, 2003State Public Notification requested1 linked violation
July 10, 2003State Violation/Reminder Notice1 linked violation
July 10, 2003State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
April 10, 2003State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
April 10, 2003State Public Notification requested1 linked violation
April 10, 2003State Violation/Reminder Notice1 linked violation
April 10, 2003State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 10, 2003State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
January 10, 2003State Public Notification requested1 linked violation
January 10, 2003State Violation/Reminder Notice1 linked violation
January 10, 2003State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
October 12, 2001State Bilateral Compliance Agreement signed9 linked violations
August 15, 2001State Violation/Reminder Notice2 linked violations
January 15, 1998State Public Notification received3 linked violations
December 24, 1997State Public Notification received2 linked violations
April 2, 1997State Compliance achieved1 linked violation
January 7, 1997State Public Notification received1 linked violation
December 28, 1995State Public Notification received2 linked violations
October 1, 1995State Public Notification received1 linked violation
June 21, 1995State Public Notification received2 linked violations
June 21, 1994State Public Notification received1 linked violation
June 15, 1993State Public Notification received1 linked violation
November 16, 1992State Public Notification received1 linked violation
October 22, 1992State Public Notification received1 linked violation
September 8, 1990State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
September 8, 1990State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
July 23, 1990State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
June 23, 1986State Compliance achieved1 linked violation

Common questions

Is SOUTH WILMINGTON required to publish a Consumer Confidence Report?: Yes. SOUTH WILMINGTON is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is SOUTH WILMINGTON’s next Consumer Confidence Report due?: SOUTH WILMINGTON’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does SOUTH WILMINGTON have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show 2 items for SOUTH WILMINGTON that are open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
What is a Consumer Confidence Report?: A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

LARDI JR., NORMAN

815-714-0138

SOUTH WILMINGTON, IL 60474